How Long Can You Run Your House on a Tesla Powerwall?
OverviewBenefitsFormsEconomicsSee alsoFurther readingExternal linksGrid energy storage (also called large-scale energy storage) is a collection of methods used for energy storage on a large scale within an electrical power grid. Electrical energy is stored during times when electricity is plentiful and inexpensive (especially from intermittent power sources such as renewable electricity from wind power, tidal power and solar power) or when demand is low